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8.2 Bio

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Term
Definition
binary fission   a form of sexual reproduction in single-celled organisms by which 1 cell divides into 2 cells of the same size  
Mitosis   in eukaryotic cells, a process of cell division that forms 2 new nuclei, each of which has the same number of chromosomes  
Asexual reproduction   reproduction that does not involve the union of gametes and in which a single parent produces offspring that are genetically identical to the parent  
Meiosis   a process in cell division during which the number of chromosomes decrease to half the original number by 2 divisions of the nucleus, which results in the production of sex cells (gametes or spores)  
Gamete   a haploid reproductive cell that unites with another haploid reproductive cell to form a zygote  
Interphase   a period between 2 mitotic or meiotic divisions during which the cell grows, copies its DNA, and synthesizes proteins  
Cytokinesis   the division of the cytoplasma of a cell; cytokinesis follows the division of the cell's nucleus by mitosis or meiosis  
Prophase   the first stage of mitosis and meiosis in cell division; characterized by the condensation of the chromosomes  
Spindle fiber   1 of the microtubules that extend across a dividing eukaryotic cell; assists in the movement of chromosomes  
Metaphase   1 of the stages of mitosis and meiosis, during which all of the chromosomes move to the cell's equator  
Anaphase   a phase of mitosis and meiosis in which the chromosomes separate  
Telophase   the final stage of mitosis or meiosis, during which a nuclear membrane forms around each set of new chromosomes  
Cell plate   the precursor of a new plant cell wall that forms during cell division and divides a cell into 2  


   






 
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Created by: ChambersA20